fsdax: remove redundant variable 'error'

The variable 'error' is being assigned a value that is never read,
the assignment and the variable and redundant and can be removed.
Cleans up clang scan build warning:

fs/dax.c:1880:10: warning: Although the value stored to 'error' is
used in the enclosing expression, the value is never actually read
from 'error' [deadcode.DeadStores]

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://lore.kernel.org/r/20230621130256.2676126-1-colin.i.king@gmail.com
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>

diff --git a/fs/dax.c b/fs/dax.c
index 2ababb8..cb36c67 100644 (file)
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -1830,7 +1830,6 @@ static vm_fault_t dax_iomap_pmd_fault(struct vm_fault *vmf, pfn_t *pfnp,
        vm_fault_t ret = VM_FAULT_FALLBACK;
        pgoff_t max_pgoff;
        void *entry;
-       int error;
 
        if (vmf->flags & FAULT_FLAG_WRITE)
                iter.flags |= IOMAP_WRITE;
@@ -1877,7 +1876,7 @@ static vm_fault_t dax_iomap_pmd_fault(struct vm_fault *vmf, pfn_t *pfnp,
        }
 
        iter.pos = (loff_t)xas.xa_index << PAGE_SHIFT;
-       while ((error = iomap_iter(&iter, ops)) > 0) {
+       while (iomap_iter(&iter, ops) > 0) {
                if (iomap_length(&iter) < PMD_SIZE)
                        continue; /* actually breaks out of the loop */